I purchased an iMac 5k last year. I noticed the floaters started popping up very shortly after I started using it. Of course this may be a huge coincidence, but they started very soon after using it and they seem to be the most noticeable and uncomfortable when I'm using it. Can anyone think of any reason why this computer may cause the problem and how to reduce it? So far what I've read is that it may be due to the glossy screen they use on iMacs, thought my old monitor was also glossy. I added bias lighting to the back to reduce the contrast and reduce the ambient lighting in the room, which was recommended on other sites. I gotta admit, I love this screen, but I'd give it up if it was what was damaging my eyes. Anyone have any idea about it?